Kraus reactor problem
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Question: Regarding design information for Klaus reactors, how is the reactor size calculated? Thank you!
The size of the reactor is related to the amount of acidic gas and the concentration of H2S. The space velocity of the process gas through the reactor should be between 300 and 1000 h^-1. The reactor is small, the space velocity is too high, the residence time of the process gas is short, resulting in insufficient contact with the catalyst and affecting the conversion rate. The reactor is too large, resulting in high equipment costs.
Is an airspeed of 300 too low? It is usually designed to be 800-1000.
It turns out that the “Claus” in the senior’s name means “Klaus”.
Approximately 4 tons of catalyst are used per 10,000 tons of material processed.
The space velocity in converters is usually between 600 and 900; it’s around 1200 in hydrogenation reactors. A value of 300 is indeed a bit low